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Synthesis of N-TiO2: Stability and Visible Light Activity for Aqueous Styrene Degradation
被引:9
|作者:
Keramati, Narjes
[1
]
Nasernejad, Bahram
[1
]
Fallah, Narges
[1
]
机构:
[1] Amirkabir Univ Technol, Tehran, Iran
关键词:
Aqueous styrene;
N-TiO2;
photocatalytic degradation;
visible light;
N-DOPED TIO2;
PHOTOCATALYTIC ACTIVITY;
CODOPED TIO2;
PERFORMANCE;
ADSORPTION;
NANOTUBES;
PHENOL;
UREA;
D O I:
10.1080/01932691.2013.852106
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Nitrogen-doped TiO2 (N-TiO2) were prepared by the impregnation method using urea as a nitrogen source and TiO2-P25 as precursor. N-TiO2 was characterized by x-ray diffraction (XRD), UV-vis diffusion reflectance spectra (UV-vis DRS), Fourier transform infrared spectroscopy (FTIR), and x-ray photoelectron spectroscopy (XPS) techniques. XPS analysis indicates the incorporation of nitrogen in TiO2 lattice as O-Ti-N linkage. DRS spectra reveal the extended absorption to the visible range. Photocatalytic performance of the N-TiO2 was studied by testing the degradation rate of aqueous styrene under visible light. Also, the degradation kinetics of aqueous styrene and possibility of cyclic usage of N-TiO2 were investigated.
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页码:1476 / 1482
页数:7
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